United States, Minnesota, Red Lake, At 'Old Crossing Treaty State Wayside Park'. On the N bank of the Red Lake River, about 6 miles W of the town of Red Lake Falls. T151N R45W SE1/4 of SW1/4 of Sec. 1
47.8666649 -96.4113922
47°52'"N, 96°24'41"W
Wet grassy river bank. Assoc. with Heracleum lanatum, Glyceria grandis, Bidens frondosa